I love this product! It really comes in handy when doing the dishes by hand! I use the same sponge for many days at a time! It is very effective when doing dishes, and it really gets the job done. I love the smell as well!
I have a pack of these under my kitchen sink and bathroom sink at all times. They are great for anything really stuck on pots and pans as well as soap scum on the tub. It's abrasive enough to remove the stuck on mess but doesn't ruin the pots or grout.
I haven't had them smell and they seem to hold up as well as any other sponge by scotch brite. I guess it would depend on what you use it for? I use mine to clean the tub and to scrub dishes before loading them into the dishwasher.